Read Sony KDL-32R400A / KDL-32R420A / KDL-40R450A / KDL-40R470A / KDL-46R450A / KDL-46R470A Service Manual online
KDL-32R400A/420A, 40R450A/470A, 46R450A/470A(PA)
22
1) 2 times blinking (Main Power Error)
TROUBLE SHOOTING
3-2. STANDBY LED BLINK
Harness issue
Change
PSU
OK
Symptom
improvement
<2.6V
Change
Main board
Change
Main board
2-time blinking
Check REG+12V at
CN201_Pin-3/8 on
Main board
(11.8~13.2V)
Replace the harness
between PSU and
Main board
NG
NG
Check PSU_EN# at
CN201_Pin-6 on
Main board
>=2.6V
Check the harness
PSU to M/B
connection
NG
OK
Fix the harness
connection
OK
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